What is the recommended dose of Astragaloside IV?

- **Look for:** Purified astragaloside IV with quantified content; TA-65® brand (only form with human data) - **Avoid:** Standard astragalus root extract (astragaloside IV is <0.1% of crude root — ...

Is Astragaloside IV safe to take daily?

Astragaloside IV is rated "Generally Safe" based on clinical evidence. Always consult your healthcare provider before starting any supplement.

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Ingredient Research

Graded against 173,636 supplements + 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD

Astragaloside IV

MODERATE EVIDENCESupplementLast updated

AVELOR SUMMARY

Astragaloside IV is a saponin from Astragalus membranaceus that activates telomerase — the enzyme that lengthens telomeres (protective caps on chromosomes that shorten with each cell division). TA-65® is the branded extract marketed as a telomere-lengthening supplement at premium prices ($100-600/month). Our research shows it DOES activate telomerase in vitro and in some human cells, and a 2011 study showed CMV-specific T-cell telomere lengthening. However: (1) the magnitude of telomere effect in vivo is tiny; (2) telomerase activation also promotes cancer cell immortality — the safety implication that is NEVER discussed in marketing; (3) the price-to-evidence ratio is the worst of any supplement we've reviewed.

WHAT IT DOES

Astragaloside IV activates the hTERT gene (human telomerase reverse transcriptase) — the catalytic subunit of telomerase. When telomerase is active, it adds TTAGGG repeats to chromosome ends (telomeres), preventing telomere shortening during cell division. Telomere shortening is one mechanism of cellular aging (Hayflick limit), and critically short telomeres trigger cellular senescence or apoptosis. By maintaining telomere length, cells can continue dividing and functioning longer. HOWEVER: this is the exact same mechanism cancer cells use to become immortal — which is why 85-90% of cancers reactivate telomerase.

OPTIMAL DOSAGE

Look for: Purified astragaloside IV with quantified content; TA-65® brand (only form with human data)
Avoid: Standard astragalus root extract (astragaloside IV is <0.1% of crude root — effectively zero); products claiming "telomere support" without quantified astragaloside IV
Minimum effective dose: 5mg astragaloside IV; or TA-65 250 units
Third-party tested brands: TA Sciences (TA-65), RevGenetics

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SAFETY PROFILE

Critical Interactions (Do Not Combine Without Medical Supervision)

No pharmacological critical interactions identified.

Moderate Interactions (Monitor Closely)

Theoretical/Low-Risk Interactions

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Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:

Not medical advice. Based on published clinical research and systematic reviews.

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